Failed to connect to lvmetad

WARNING : Failed to connect to lvmetad. Falling back to device scanning

Using debian testing, the fix was:

STEP 1:

/etc/lvm/lvm.conf

Change from:

use_lvmetad=1

to :

use_lvmetad=0

STEP 2:

update-initramfs -k $(uname -r) -u; sync

STEP 3:

reboot